WO2002052239A1 - Druckmessvorrichtung - Google Patents
Druckmessvorrichtung Download PDFInfo
- Publication number
- WO2002052239A1 WO2002052239A1 PCT/EP2001/014791 EP0114791W WO02052239A1 WO 2002052239 A1 WO2002052239 A1 WO 2002052239A1 EP 0114791 W EP0114791 W EP 0114791W WO 02052239 A1 WO02052239 A1 WO 02052239A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- receiving tube
- measuring device
- sleeve
- pressure measuring
- pressure sensor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/148—Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/003—Fluidic connecting means using a detachable interface or adapter between the process medium and the pressure gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0061—Electrical connection means
- G01L19/0084—Electrical connection means to the outside of the housing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/147—Details about the mounting of the sensor to support or covering means
Definitions
- the invention relates to a pressure measuring device.
- the invention relates to a pressure measuring device with a pressure sensor element which has a membrane-like deformation body on one end face.
- the pressure sensor element is arranged in a receiving tube, the membrane-like deformation body facing a sensor opening, against which a measuring medium is present during operation of the pressure measuring device.
- the sensor opening is delimited by a shoulder, which extends radially inward from the wall of the receiving tube and defines an axial stop surface for the sensor element.
- An electronic circuit for processing the primary sensor signals is preferably provided in the receiving tube on the side of the pressure sensor element facing away from the measuring medium.
- a sealing element is usually arranged between the end face of the pressure sensor element and the axial stop surface of the receiving tube in order to prevent the measurement medium from penetrating into the interior of the receiving tube.
- the invention is therefore based on the object of proposing a pressure measuring device which overcomes the problem described.
- the object is achieved by the pressure measuring device according to the independent claim.
- the invention discloses a pressure measuring device comprising:
- a pressure sensor element with a membrane-like deformation body arranged in an end face of the pressure sensor element; a substantially cylindrical receiving tube with a first thread and a shoulder for receiving axial forces, which extends radially inward from the cylindrical wall of the receiving tube and defines a sensor opening;
- a screw element with a second thread complementary to the first thread, and at least one end clamping surface for absorbing axial forces, the screw element being screwable into the receiving tube in order to clamp the pressure sensor element axially between the clamping surface and the shoulder;
- the pressure measuring device further comprising:
- At least one first locking member which is not rotatable with respect to the receiving tube
- the transmission element clamped between the screw element and the pressure sensor element, for transmitting the axial clamping force, the transmission element having at least one second locking element which is in engagement with the at least one first locking element in order to prevent rotation of the transmission element in the receiving tube.
- the structure described prevents torques from being transmitted to the pressure sensor element during the assembly of the pressure measuring device, which could lead to torsional stresses in the pressure sensor element and impair the measuring accuracy.
- a cylindrical sleeve can be arranged in the receiving tube, which positions or centers the pressure sensor element at a distance from the cylindrical wall of the receiving tube.
- the pressure sensor element is thus electrically and / or thermally insulated from the receiving tube and protected against radial mechanical loads, for example impacts or impacts.
- the sleeve is preferably molded from a thermoplastic or thermoelastic polymer.
- the sleeve is preferably held in the receiving tube by a clamp fit, wherein optionally positive connections can be provided between the sleeve and the receiving tube. With appropriate dimensions, however, the press fit should already be sufficient to prevent rotation of the sleeve in the receiving tube.
- the at least one first latching element is preferably formed as part of the sleeve or on the sleeve.
- it can be designed as a tongue which extends from the sleeve in the axial or radial direction.
- the at least one first latching element can be shaped as a recess in an inner lateral surface or an end surface of the sleeve.
- the first locking element serves as a rotation stop for the complementarily designed at least one second locking element, the transmission element.
- the latching elements must be shaped in such a way that they limit rotation of the transmission element, but do not impair axial movement of the transmission element in the receiving tube, at least to the extent that the transmission element can rest freely on the pressure sensor element and can press it against the shoulder of the receiving tube.
- first latching element and a complementary second latching element
- a deviation from the symmetry may be preferable in order to achieve a clear orientation of the transmission element with respect to the receiving tube or with respect to the sleeve for reasons not to be discussed in more detail here.
- a deviation from the symmetry can be caused, for example, by Change in the angle between the locking element pairs or by varying the contours such as the width of a locking element pair.
- the structure according to the invention can be used for any pressure sensor elements which are clamped with their front faces exposed to a measuring medium, but capacitive measuring cells with a ceramic membrane, piezoresistive cells with a silicon membrane or inductive measuring cells are particularly suitable.
- a sealing element for example an O-ring
- Fig. 1 a longitudinal section through an inventive
- the figures 1 and 2 provide an overview of the components of an embodiment of the pressure measuring device according to the invention, and their arrangement with respect to one another.
- a receiving tube 1 has a rear opening through which the sleeve 2 is inserted into the receiving tube 1.
- the sleeve 2 is fixed in the receiving tube 1 by a clamp fit.
- the sleeve sits in the front end section of the receiving tube 1 and abuts with its first end face against an axial stop surface which is formed by a shoulder 12 which extends radially inward from the tube wall of the receiving tube 1 and one Sensor opening 11 defined.
- An essentially cylindrical pressure sensor element 3 is centered with respect to the sensor opening 11 by means of the sleeve 2, with between the end face of the Pressure sensor element 3 and the axial stop surface of the shoulder 12, a sealing element 8 is clamped.
- the sealing element 8 is preferably designed as an O-ring made of an elastic material.
- the sleeve 2 has a radial stop surface which protrudes radially inwards from the inner sleeve wall.
- a transmission element 4 is inserted into the receiving tube 1 to axially fix the pressure sensor element 3.
- the transmission element 4 has, on its end face facing the pressure sensor element 3, an axial stop surface which is seated on the end face of the pressure sensor element 3 facing away from the sensor opening 11.
- the axial stop surface is preferably designed as a continuous circular ring surface. In an alternative embodiment, the axial stop surface is broken down into a plurality of separate partial surfaces which are seated on the sensor element 3.
- the transmission element 4 has on its end face facing away from the pressure sensor element 3 a second axial stop surface which has a screw element 7 which is screwed into the receiving tube 1 in order to axially clamp the pressure sensor element 3 by means of the transmission sleeve 4.
- the screw element 7 preferably has the shape of a cylindrical sleeve, at least in its end region facing the transmission element 4, the end face of which rests along an annular contact surface on the second axial stop surface of the transmission element.
- pairs of complementary first and second locking members are provided, which prevent rotation of the transmission element 4 in the receiving tube 1.
- the first locking members are designed as tongues 21 which extend from the end face of the sleeve 2 in the axial direction.
- the second latching members are designed as complementary cutouts 41 in the lateral surface of a first cylindrical section of the transmission element 4.
- the first cylindrical section borders a second cylindrical section with a smaller radius than the first cylindrical section, so that a shoulder surface 42 is formed between the two cylindrical sections.
- the recesses 41 in the lateral surface of the first section extend in the daxial direction up to the shoulder surface 42 between the first and the second section and are open towards the shoulder surface 42.
- the tongues 21 engage through the shoulder surface 42 with the recesses 41 and thus prevent rotation of the transmission element 4 with respect to the sleeve 2.
- the transmission element 4 is also with the arrangement described secured against rotation with respect to the receiving tube. This ensures that no disruptive torques are introduced into the pressure sensor element when the pressure measuring device is installed.
- projections can extend from a surface of the transmission element, which come into engagement with complementary recesses in the sleeve 2 or the tube wall 1.
- FIG. 2 shows as further details a circuit board 6 which is held in a receptacle arranged on the transmission element 4.
- a line 5 for the transmission element Transfer of the reference pressure arranged.
- the pressure measuring device according to the invention is particularly suitable as an immersion sensor for measuring a hydrostatic pressure, but is in no way limited to this use.
- the receiving tube 1 can likewise be realized in a narrow sense by an essentially cylindrical bore in a solid body without deviating from the basic idea of the invention.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002553088A JP3728438B2 (ja) | 2000-12-22 | 2001-12-14 | 圧力測定装置 |
AT01272012T ATE308035T1 (de) | 2000-12-22 | 2001-12-14 | Druckmessvorrichtung |
DE50107858T DE50107858D1 (de) | 2000-12-22 | 2001-12-14 | Druckmessvorrichtung |
US10/450,538 US6883383B2 (en) | 2000-12-22 | 2001-12-14 | Pressure measuring device |
EP01272012A EP1344034B1 (de) | 2000-12-22 | 2001-12-14 | Druckmessvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064811.8 | 2000-12-22 | ||
DE10064811A DE10064811A1 (de) | 2000-12-22 | 2000-12-22 | Druckmessvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002052239A1 true WO2002052239A1 (de) | 2002-07-04 |
Family
ID=7668831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/014791 WO2002052239A1 (de) | 2000-12-22 | 2001-12-14 | Druckmessvorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6883383B2 (zh) |
EP (1) | EP1344034B1 (zh) |
JP (1) | JP3728438B2 (zh) |
CN (1) | CN1221794C (zh) |
AT (1) | ATE308035T1 (zh) |
DE (2) | DE10064811A1 (zh) |
WO (1) | WO2002052239A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009141204A1 (de) * | 2008-05-19 | 2009-11-26 | Endress+Hauser Gmbh+Co.Kg | Modular aufgebautes messgerät mit klemmung gegen verdrehen |
EP2028469A3 (de) * | 2007-08-20 | 2010-10-20 | VEGA Grieshaber KG | Druckmesseinrichtung |
CH702915A1 (de) * | 2010-03-18 | 2011-09-30 | Kistler Holding Ag | Sensor mit verformungs-entkoppelter einspannungsvorrichtung. |
EP3540870A1 (en) * | 2018-03-15 | 2019-09-18 | Honeywell International Inc. Intellectual Property - Patent Services | Anti-rotation device for circular connector |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004031582A1 (de) | 2004-06-29 | 2006-02-09 | Endress + Hauser Gmbh + Co. Kg | Duckaufnehmer |
DE102004057967A1 (de) * | 2004-11-30 | 2006-06-01 | Endress + Hauser Gmbh + Co. Kg | Drucksensor |
DE102007001445A1 (de) | 2007-01-03 | 2008-07-10 | Vega Grieshaber Kg | Abdichteinrichtung zum Verschließen eines Druckmesszellengehäuses, Druckmesszelleneinrichtung bzw. Druckmessvorrichtung damit |
DE102008043169A1 (de) * | 2008-10-24 | 2010-04-29 | Endress + Hauser Gmbh + Co. Kg | Messvorrichtung und Verfahren zur Herstellung der Messvorrichtung |
DE102010029955A1 (de) * | 2010-06-10 | 2011-12-15 | Endress + Hauser Gmbh + Co. Kg | Drucksensor mit einer zylindrischen Druckmesszelle |
DE102012012527B4 (de) * | 2012-06-26 | 2015-05-21 | Krohne Analytics Gmbh | Messvorrichtung zum Bestimmen einer Prozessgröße |
DE102016210519B4 (de) * | 2016-06-14 | 2020-09-10 | Robert Bosch Gmbh | Sensoranordnung und Verfahren zur Herstellung einer Sensoranordnung |
EP3470809B1 (de) * | 2017-10-16 | 2020-07-15 | Kistler Holding AG | Drucksensor für ein metall- oder kunststoffverarbeitungswerkzeug |
DE102019107783A1 (de) * | 2019-03-26 | 2020-10-01 | Vega Grieshaber Kg | Messanordnung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539849A (en) * | 1983-09-16 | 1985-09-10 | American Hospital Supply Corporation | Transducer assembly including a disposable dome |
DE4213857A1 (de) * | 1992-04-27 | 1993-10-28 | Endress Hauser Gmbh Co | Vorrichtung zum Messen von Druck und Differenzdruck |
DE4234290A1 (de) * | 1992-10-12 | 1994-04-14 | Fibronix Sensoren Gmbh | Drucksensor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0757237B1 (de) * | 1995-08-01 | 2002-04-10 | Endress + Hauser GmbH + Co. | Druckaufnehmer |
US5693887A (en) * | 1995-10-03 | 1997-12-02 | Nt International, Inc. | Pressure sensor module having non-contaminating body and isolation member |
-
2000
- 2000-12-22 DE DE10064811A patent/DE10064811A1/de not_active Withdrawn
-
2001
- 2001-12-14 EP EP01272012A patent/EP1344034B1/de not_active Expired - Lifetime
- 2001-12-14 WO PCT/EP2001/014791 patent/WO2002052239A1/de active IP Right Grant
- 2001-12-14 DE DE50107858T patent/DE50107858D1/de not_active Expired - Lifetime
- 2001-12-14 US US10/450,538 patent/US6883383B2/en not_active Expired - Fee Related
- 2001-12-14 AT AT01272012T patent/ATE308035T1/de not_active IP Right Cessation
- 2001-12-14 JP JP2002553088A patent/JP3728438B2/ja not_active Expired - Fee Related
- 2001-12-14 CN CN01821102.XA patent/CN1221794C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539849A (en) * | 1983-09-16 | 1985-09-10 | American Hospital Supply Corporation | Transducer assembly including a disposable dome |
DE4213857A1 (de) * | 1992-04-27 | 1993-10-28 | Endress Hauser Gmbh Co | Vorrichtung zum Messen von Druck und Differenzdruck |
DE4234290A1 (de) * | 1992-10-12 | 1994-04-14 | Fibronix Sensoren Gmbh | Drucksensor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2028469A3 (de) * | 2007-08-20 | 2010-10-20 | VEGA Grieshaber KG | Druckmesseinrichtung |
WO2009141204A1 (de) * | 2008-05-19 | 2009-11-26 | Endress+Hauser Gmbh+Co.Kg | Modular aufgebautes messgerät mit klemmung gegen verdrehen |
US8371185B2 (en) | 2008-05-19 | 2013-02-12 | Endress + Hauser Gmbh + Co. Kg | Measuring device |
CH702915A1 (de) * | 2010-03-18 | 2011-09-30 | Kistler Holding Ag | Sensor mit verformungs-entkoppelter einspannungsvorrichtung. |
WO2011113166A3 (de) * | 2010-03-18 | 2011-12-22 | Kistler Holding Ag | Sensor mit verformungs-entkoppelter einspannungsvorrichtung |
EP3540870A1 (en) * | 2018-03-15 | 2019-09-18 | Honeywell International Inc. Intellectual Property - Patent Services | Anti-rotation device for circular connector |
US10553988B2 (en) | 2018-03-15 | 2020-02-04 | Honeywell International Inc. | Anti-rotation device for circular connector |
Also Published As
Publication number | Publication date |
---|---|
CN1483140A (zh) | 2004-03-17 |
DE50107858D1 (de) | 2005-12-01 |
CN1221794C (zh) | 2005-10-05 |
EP1344034B1 (de) | 2005-10-26 |
ATE308035T1 (de) | 2005-11-15 |
US20040050169A1 (en) | 2004-03-18 |
JP2004524517A (ja) | 2004-08-12 |
DE10064811A1 (de) | 2002-06-27 |
JP3728438B2 (ja) | 2005-12-21 |
EP1344034A1 (de) | 2003-09-17 |
US6883383B2 (en) | 2005-04-26 |
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